When one end of an electric arc is positively charged and the other end is negatively charged, the two ends attract each other, forming a discharge. Accompanied by the transfer of free charges (electrons), it emits light and heat, and is a form of electric arc.
Electrical discharge machining (EDM) is a processing technique that uses discharge electrodes (EDM electrodes) with specific geometric shapes to burn the desired electrode geometry onto a metal (conductive) component. So, what is the significance of detecting the state of the EDM discharge?
The condition of the discharge gap is fundamental for servo feed control and pulse power supply adaptation. Discharge gap condition detection is an essential component of EDM equipment, and its performance directly affects the stability and efficiency of the machining process. An EDM detector can be used to detect the discharge gap.
Most electrical spark testers are continuously adjustable from 0.5kV to 35kV, used to measure anti-corrosion coatings of varying thicknesses. Most instruments are equipped with rechargeable batteries for convenient use on construction sites and in workshops. Various types of probes are available (plate-type, fan-shaped, circular, and ring-shaped) to suit different working environments and workpieces. The instrument includes a calculation table to determine the appropriate pressure based on the coating thickness. Excessive voltage can damage the coating, while insufficient voltage will fail to detect pinholes and other defects. Before use, the instrument must be inspected. The probes must never come into contact with the human body to prevent injury. For easier use, the FISO fiber optic pressure sensor (FOP-M) recommended by ICbuy.com can be installed in the instrument.
The FOP-M is a fiber optic pressure sensor primarily used in high-temperature environments, such as aerospace and defense. In addition, this sensor is also a useful tool for general industrial applications in harsh and hazardous environments.
One of the purposes of designing the FOP-M fiber optic pressure sensor is to enable it to operate in high-temperature environments. In addition, the FOP-M fiber optic pressure sensor also possesses the following advantages: unaffected by EI/RFI, small size, reliable measurement capabilities in harsh environments, high accuracy, and corrosion resistance.
The FOP-M fiber optic pressure sensor is based on the well-established Fabry-Perot interferometry principle. Its unique design, based on the measurement of segregation in a silicon film, is fundamentally different from traditional pressure measurement techniques. Changes in pressure cause variations in the length of the Fabry-Perot interferometer cavity, and our fiber optic signal conditioner can continuously and accurately measure this cavity length even in extremely harsh environments with high temperatures, EMI, humidity, and vibration. This pressure sensor provides better and more reliable pressure measurement for existing applications in the industry, while also offering scalability for new applications operating at high temperatures.
The FOP-M fiber optic pressure sensor boasts a maximum temperature resistance of 150°C (302°F), making it ideal for any research field operating in high-temperature environments. For these extreme conditions, we can provide fiber optic lead-sheathed cables of various lengths and types.
